{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfb045cc332d727f06b1f4072ac004b291a78902a0e1231efc9700b3271c3a0d8",
    "signature": "0x999a85c39465a0a46690ddd8169b58c4ed2c87fb014ec96b0ae82ad17153d8366226f7ce5cc75c99643800d0fd3ad3cc94fad9c01015cd48900f778b1aa0a9b61c",
    "signer": "0x277218784964cB241A4295831471957eA0A9C7e1",
    "userId": "537830265"
  }
}